Saturday, October 29, 2005 - 08:36 pm, by: Chris Ryan(Ryzan)
Would #3 be too loud (louder than legal), or would you just need non-straight through mufflers? I think every exhaust guy I've spoken to has recommended some sort of crossover to reduce noise and improve power. I'm not really worried about extra power, just want a nice V8 noise.
Saturday, October 29, 2005 - 11:27 pm, by: Mike Triggs(Mikeandimah)
Vaguely on-topic, years ago I went into this stuff when I had an International Scout, and I had gotten a set of extractors in from US. I had them connected to a new twin system, with an interconnect. I asked for it but the fitters approved. An "X" setup would have been better (better flow) but I didn't have the room (bloody great Dana diff in the way).
From memory a crossover helps share the load between mufflers as some of each pulse goes through the alternate muffler. I noticed a great improvement and a nice note (Inters had an odd firing pattern, too, apparently).
Doing the headers or/and exhaust will help with better flow. Do your BFI too. Once you have completed the mods get a uni chip and have it tuned to your car and you could save on normal style of driving, at lest till you put your foot down!
Anish, X-pipes are also available off the shelf. I have read conflicting reports about their effectiveness for power increase. PlanetSoarer has an article demonstrating an increase in power. Someone else had their Soarer dyno'd before and after (in ALSC archives somewhere) and got no apparent increase.
What is agreed however, is that an X-pipe will make the car a little quieter as it allows the pulses to mingle at the joint and smooths them out.
For me, not having an X-pipe is good. I don't have headers, so am not able to achieve maximum power increase from the exhaust, so I settle for terrific burble instead. Yet to hear a V8 that sounds better